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Old 02-26-2017, 07:37 PM   #20
Scooby Newbie
Member#: 78728
Join Date: Jan 2005
Chapter/Region: Tri-State
Location: Jim Chunk, PA
04 STi


Another decent day. Time to get that O2 sensor. Took the passenger front wheel off and moved a plastic flat out of the way to access it on the headers. Placed a claw-foot O2 sensor wrench on it, then got out my breaker bar, as most O2 sensors need some convincing to be removed.

Also took off this brace for the O2 sensor wire. The bolt for it was actually one of the bolts for the coil packs.

I spun the claw foot wrench as far as I could each revolution, then took it off and re-aligned it. The front O2 sensor is in a tough spot, as you can't just freely wrench on it because there's a part of the frame or body that sits very close and prevents you from moving your rachet further. Some people say they use vice grip pliers. Didn't have them so I put the claw foot to use.

Then it was time for the passenger side wiring harness.

Driver's side harness was a little tougher. There's a bracket that holds down the harness clips. Took the bracket off to have better leverage. Then I put a flat head screwdriver in the release button, then wiggled the clip back and forth until it separated.

Clips undone:
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Dash_Martino is offline   Reply With Quote